Search Results for: programming
You are given a string s of “a” and “b”s. “a”s can stay “a” or turn into “b”, but “b”s can’t change. Return the number of unique strings that …
You are given a binary tree root containing unique values, and an integer target. Find the node with value target and return the node that’s directly right of it …
Given a list of integers nums, consider an operation where you pick any number e and remove every number in nums equal to e. Return the minimum number of …
There is confusion concerning the concept of artificial intelligence. People are unaware of its meaning, its role in their professional life, whether it would replace human beings in the …
Given a binary tree root, remove all nodes with only one child. Constraints n ≤ 100,000 where n is the number of nodes in root Example 1 Input root …